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公开(公告)号：US4795845A
公开(公告)日：1989-01-03
申请号：US138187
申请日：1987-12-28
CPC分类号： C07C5/2724 , B01J29/40 , B01J29/44 , B01J29/90 , C07C2/76 , B01J2229/26 , B01J2229/36 , B01J2229/42 , B01J29/65 , B01J29/70 , C07C2521/04 , C07C2523/08 , C07C2527/14 , C07C2529/40 , Y02P20/584
摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst once it becomes deactivated is only recovered by burning the coke accumulated upon the deactivated catalyst at catalyst regeneration conditions in the presence of an oxygen-containing gas.
摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的催化剂使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低了五倍 常规脱氢环化二聚催化剂。 然而，一旦催化剂失活，该催化剂的活性只有在含氧气体存在下，在催化剂再生条件下燃烧积聚在失活催化剂上的焦炭来回收。
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公开(公告)号：US4724271A
公开(公告)日：1988-02-09
申请号：US33136
申请日：1987-03-31
CPC分类号： C07C5/2724 , B01J29/40 , B01J29/44 , B01J29/90 , C07C2/76 , B01J2229/26 , B01J2229/36 , B01J2229/42 , B01J29/65 , B01J29/70 , C07C2521/04 , C07C2523/08 , C07C2527/14 , C07C2529/40 , Y02P20/584
摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a water-sensitive catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst is significantly reduced by exposure to water at the temperatures normally used in removing the coke, which is accomplished by burning the coke in a combustion zone in the presence of oxygen, producing carbon dioxide and water. At least a portion of the gas leaving the combustion zone catalyst bed is combined with air and recycled back to the combustion zone. This mode of operation causes the concentration of water in the recycled stream to increase to an unacceptable value. Therefore, to obtain the benefit of this superior catalyst, it is necessary to utilize water removal steps in the catalyst regeneration procedure.
摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的水敏催化剂，使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低5倍 常规脱氢环化二聚催化剂。 然而，在通常用于除去焦炭的温度下，该催化剂的活性显着降低，这通过在氧气存在下在燃烧区中燃烧焦炭，产生二氧化碳和水来实现。 离开燃烧区催化剂床的气体的至少一部分与空气结合并再循环回燃烧区。 这种操作模式导致再循环流中的水的浓度增加到不可接受的值。 因此，为了获得该优良催化剂的优点，需要在催化剂再生方法中利用除水步骤。
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公开(公告)号：US4956329A
公开(公告)日：1990-09-11
申请号：US276610
申请日：1988-11-28
IPC分类号： B01D53/94 , B01J21/14 , B01J21/16 , B01J35/00 , B01J35/02 , B01J37/00 , B01J37/03 , C01B33/26 , C04B35/195
CPC分类号： B01D53/945 , B01J21/14 , B01J35/00 , B01J37/0009 , B01J37/03 , C04B35/195 , Y02T10/22
摘要： This invention relates to a catalyst support structure, methods of preparing the support structure and a process for using the support structure. The catalyst support structure is composed of a substantially polycrystalline cordierite phase having a chemical composition by weight of 6-15% MgO, 33-40% Al.sub.2 O.sub.3 and 45-56% SiO.sub.2 and characterized in that it has a surface area of at least 2.7 m.sup.2 /g and preferably 8 m.sup.2 /g, a compressive strength of at least 31 MPa, a thermal expansion coefficient smaller than 5.2.times.10.sup.-6 m/m/.degree.C. and a porosity of at least 20%.
摘要翻译： 本发明涉及催化剂载体结构，制备载体结构的方法和使用该载体结构的方法。 催化剂载体结构由具有6-15％MgO，33-40％Al 2 O 3和45-56％SiO 2重量的化学组成的基本上多晶的堇青石相组成，其特征在于其表面积至少为2.7m 2 / g，优选为8m 2 / g，抗压强度为至少31MPa，热膨胀系数小于5.2×10 -6 m / m /℃，孔隙率为至少20％。
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公开(公告)号：US4636483A
公开(公告)日：1987-01-13
申请号：US806984
申请日：1985-12-09
IPC分类号： C01B39/00 , B01J29/40 , B01J29/44 , B01J29/65 , B01J29/70 , B01J29/90 , C01B39/06 , C01B39/38 , C07B61/00 , C07C1/00 , C07C2/76 , C07C15/00 , C07C67/00 , C10G45/60 , B01J29/06
CPC分类号： B01J29/40 , B01J29/44 , B01J29/90 , C07C2/76 , B01J2229/26 , B01J2229/36 , B01J2229/42 , B01J29/65 , B01J29/70 , C07C2521/04 , C07C2523/08 , C07C2527/14 , C07C2529/40 , Y02P20/584
摘要： Superior tolerance to catalyst coking is obtained with a catalytic composite comprising a gallium component and a crystalline aluminosilicate incorporated with a phorphorus containing alumina. A five-fold reduction in the coke content of the spent catalyst of the instant invention is observed which is directly attributable to the phosphorus containing alumina. A novel method of preparing this catalyst is presented, along with a novel process for the dehydrocyclodimerization of C.sub.2 -C.sub.5 aliphatic hydrocarbons.
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公开(公告)号：US5081086A
公开(公告)日：1992-01-14
申请号：US451978
申请日：1989-12-18
申请人： Fiona P. Wilcher , Tai-Hsiang Chao
发明人： Fiona P. Wilcher , Tai-Hsiang Chao
CPC分类号： B01J35/10 , B01J27/16 , C07C2/70 , B01J35/1038 , B01J35/108 , C07C2527/173
摘要： A novel solid phosphoric acid catalyst composition is disclosed. The composite comprises solid phosphoric acid and a refractory oxide binder. The composite is characterized in that 25.0 volume percent or less of the total catalyst pore volume consists of pores having a diameter of 10,000 .ANG. or greater. An improvement in catalyst activity and stability is observed when such a catalyst is utilized in a hydrocarbon conversion process.
摘要翻译： 公开了一种新型固体磷酸催化剂组合物。 复合材料包括固体磷酸和难熔氧化物粘合剂。 该复合材料的特征在于，总催化剂孔体积的25.0体积％或更小，由直径为10,000或更大的孔组成。 当在烃转化方法中使用这种催化剂时，观察到催化剂活性和稳定性的改善。
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公开(公告)号：US4747986A
公开(公告)日：1988-05-31
申请号：US946234
申请日：1986-12-24
申请人： Tai-Hsiang Chao
发明人： Tai-Hsiang Chao
CPC分类号： B29C47/0028 , B28B3/269 , B29C47/12 , B29L2031/60
摘要： An extrusion die for producing multichanneled structures from an extrudable material. The die is composed of a series of pins that correspond to the shape of the channels in the structure. At one end of the pins, the area between the pins is open to define a discharge zone having the shape of the structure. At their opposite ends, the pins are connected about adjacent corners by a series of webs. Slots bordered by the pins and the webs define a series of feed passages that communicate with the discharge zone at areas of reduced width between adjacent pins.
摘要翻译： 一种用于从可挤出材料制造多通道结构的挤出模头。 模具由对应于结构中的通道的形状的一系列销组成。 在销的一端，销之间的区域打开以限定具有该结构形状的排放区。 在它们的相对端，销通过一系列网连接在相邻的拐角处。 通过销和腹板限定的槽限定了一系列进料通道，其在相邻销之间的宽度减小的区域处与排出区域连通。
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7.发明授权
公开(公告)号：US4463104A
公开(公告)日：1984-07-31
申请号：US408544
申请日：1982-08-16
申请人： George J. Antos , Tai-Hsiang Chao
发明人： George J. Antos , Tai-Hsiang Chao
IPC分类号： B01J23/89 , B01J27/185 , C10G35/09 , B01J27/14
CPC分类号： C10G35/09 , B01J23/8966 , B01J27/1856
摘要： A new catalyst composition for converting hydrocarbons is disclosed. Also disclosed is a method for making the catalyst. The catalyst comprises a platinum group component and a phosphorous component with a porous support material. The catalyst is made by compositing a platinum group component with a porous support material and then contacting that composite with phosphorus or a compound of phosphorus. In a preferred embodiment of the invention a catalyst comprising platinum, phosphorus and chlorine with alumina is utilized in the catalytic reforming of hydrocarbons boiling in the gasoline range to produce a high octane reformate suitable for gasoline blending or a high aromatics content reformate suitable as a petrochemical feedstock.
摘要翻译： 公开了用于转化烃的新的催化剂组合物。 还公开了制备催化剂的方法。 该催化剂包含铂族组分和具有多孔载体材料的磷组分。 催化剂是通过将铂族组分与多孔载体材料合并然后使该复合物与磷或磷化合物接触来制备的。 在本发明的优选实施方案中，在汽油范围内沸腾的烃的催化重整中使用包含铂，磷和氯与氧化铝的催化剂，以产生适用于汽油共混的高辛烷值重整产物或适用作石油化学品的高芳族化合物重整油 原料。
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公开(公告)号：US4447351A
公开(公告)日：1984-05-08
申请号：US457547
申请日：1983-01-12
申请人： Tai-Hsiang Chao
发明人： Tai-Hsiang Chao
摘要： The present invention relates to a method of preparing an alumina hydrosol from an aluminum sulfate solution. The subject method comprises the steps of admixing a stoichiometric amount of a metal selected from the group consisting of calcium, strontium and/or barium in the form of a mixture of a hydrated chloride metal salt and a metal hydroxide with an aqueous aluminum sulfate solution, filtering the resulting metal sulfate precipitate from the above admixture, recovering a substantially sulfur-free aluminum-containing filtrate solution, admixing aluminum metal with the filtrate solution, and digesting the aluminum metal at digestion conditions with the filtrate solution to form an alumina hydrosol possessing the desired Al:Cl weight ratio.
摘要翻译： 本发明涉及从硫酸铝溶液制备氧化铝水溶胶的方法。 本发明方法包括以化学计量的量将选自钙，锶和/或钡的金属与水合氯化金属盐和金属氢氧化物的混合物与硫酸铝水溶液混合的步骤， 从上述混合物中过滤得到的金属硫酸盐沉淀物，回收基本上不含硫的含铝滤液，将铝金属与滤液溶液混合，并在消解条件下用滤液消解铝金属，形成具有 所需的Al：Cl重量比。
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公开(公告)号：US4912279A
公开(公告)日：1990-03-27
申请号：US290477
申请日：1988-12-29
申请人： Fiona P. Wilcher , Tai-Hsiang Chao
发明人： Fiona P. Wilcher , Tai-Hsiang Chao
IPC分类号： B01J27/16 , B01J35/10 , C07C20060101 , C07C2/18 , C07C2/70 , C08F110/00
CPC分类号： C07C2/70 , B01J27/16 , B01J35/023 , B01J35/1038 , B01J35/1076 , B01J35/108 , B01J37/0009 , C07C2527/173
摘要： A novel solid phosphoric acid catalyst composition, and process for using the catalyst is disclosed. The composite comprises solid phosphoric acid and a refractory oxide binder. The composite is characterized in that 25.0 volume percent or less of the total catalyst pore volume consists of pores having a diameter of 10,000 .ANG. or greater. An improvement in catalyst stability is observed when such a catalyst is utilized in a hydrocarbon conversion process.
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公开(公告)号：US4884960A
公开(公告)日：1989-12-05
申请号：US190867
申请日：1988-05-06
申请人： Tai-Hsiang Chao
发明人： Tai-Hsiang Chao
CPC分类号： B28B3/269 , B01J37/0009 , B28B3/2636 , F01N3/2828 , F01N2330/06
摘要： A honeycombed structure is extruded and wash coat applied to the interior channels of the structure before the honeycomb structure is separated from the die in which it is formed. This method produces the honeycombed structure using a die that includes a die body having an inlet and an outlet side, a plurality of parallel pins defined by the body that correspond to the shape of the channels in the honeycombed structure, and a discharge zone that communicates directly with the outlet side of the die and is defined by the open area between the pins. The extrudable material enters the discharge zone from a series of feed passages defined by the pins and a plurality of webs that interconnect the pins. Each pin has an interior duct with an opening at the end of each pin. A series of internal passages in the die body receive fluid from one or more ports on the periphery of the die and distribute the fluid to the ducts. Spraying the wash coat from the ends of the pins eliminates the need for a separate wash coat step after the honeycombed structure has been formed. In addition, wash coat is continually applied to the interior walls of the channel by the duct as the channel passes the end of the pin so that the entire length of the channel is covered with wash coat. This invention can be used in a wide variety of die configurations, but is especially suited for a die having segmented slots for feed passages and square channel forming pins defined in part by the segmented slots.
摘要翻译： 在蜂窝结构与其形成的模具分离之前，蜂窝结构被挤压和洗涤涂层施加到结构的内部通道。 该方法使用包括具有入口和出口侧的模具体的模具和由本体限定的与蜂窝结构中的通道的形状相对应的多个平行销的模具产生蜂窝结构，以及连通 直接与模具的出口侧并且由销之间的开放区域限定。 可挤压材料从由销钉限定的一系列进给通道和互连销的多个腹板进入排出区。 每个销具有内部导管，每个引脚的末端都有一个开口。 模具体中的一系列内部通道从模具的周边上的一个或多个端口接收流体，并将流体分配到管道。 从针的端部喷涂洗涤涂层，消除了形成蜂窝结构之后需要单独的洗涂步骤。 此外，当通道穿过销的端部时，通过管道将洗衣层连续地施加到通道的内壁，使得通道的整个长度被覆盖着涂层。 本发明可以用于各种模具结构，但是特别适合于具有用于进给通道的分段槽和部分由分段槽限定的方形通道形成销的模具。
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